"I'm 20 years old. Is it a crime to go ... dancing with your friends?" the actress said Tuesday on "The Oprah Winfrey (http://javascript<b></b>:siteSearch('Oprah Winfrey');) Show."

Lohan (http://javascript<b></b>:siteSearch('Lohan');) said she was "lucky and blessed" to be able to act.

"I've been acting my whole life and this is what I love to do," said Lohan, whose screen credits include "The Parent Trap (http://www.foxnews.com/story/0,2933,227957,00.html#)," "Freaky Friday," "A Prairie Home Companion" and the upcoming "Bobby," about the 1968 assassination of Sen. Robert F. Kennedy.

Emilio Estevez (http://javascript<b></b>:siteSearch('Emilio Estevez');), who directed the movie (http://www.foxnews.com/story/0,2933,227957,00.html#), told Winfrey that Lohan was a professional on the set, showed up on time and turned in "the best work of her life."

The media focuses on allegations of wild-child behavior "because it sells," Estevez said. "I'd rather have them focus on how extraordinary she is in this film," he said.

"Bobby," set for release Nov. 23, has an ensemble cast that also includes Demi Moore (http://javascript<b></b>:siteSearch('Demi Moore');)